|No.|Date/time|Aircraft|Foe|Result|Location|Notes|
|---|---|---|---|---|---|---|
|u/c|14 June 1917|Nieuport 17|Enemy aircraft||Mount Verena|Victory originally confirmed, but disallowed postwar|
|1|25 October 1917 @ 0800 hours||Enemy aircraft|Forced to land|Marcesina||
|2|7 November 1917 circa 1615 hours||Enemy aircraft|Forced to land|Fonsazo|Awarded Silver Medal for Military Valor|
|3|7 December 1917 @ 1130 hours||Enemy aircraft||Val d'Assa||
|4|13 December 1917 ca. 1130 hours||Enemy aircraft||Asiago||
|5|30 January 1918 @ 1000 hours||Enemy two-seater||Col d'Eshele, Asiago|Awarded Silver Medal for Military Valor|
|u/c|4 February 1918 ca. 1100 hours||Black enemy fighter craft||Valstagna|Claim shared with Antonio Reali|
|6|5 February 1918 ca. 0830 hours||Enemy two-seater|Forced to land|Case Girardi|Shared with Marziale Cerutti|
|7|13 February 1918 @ 0915 hours||Enemy fighter||Marcesina||
|u/c|24 February 1918||Enemy aircraft||Mount Grappa||
|8|4 May 1918 @ 0850 hours|Nieuport 27|Enemy aircraft||Montello|Austro-Hungarians reported no matching loss|
|9|4 May 1918 @ 1025 hours|Nieuport 27|Enemy fighter||Montello|Austro-Hungarians reported no matching loss|

Question: what number is previous to 13 february 1918 @ 0915 hours?
Answer: 6